IFR40135 LiFePO4 Battery Cell 3.2V 20Ah High Capacity Cylindrical Cell
- Model: IFR40135
- Nominal Voltage: 3.2V
- Capacity: 20Ah
- Dimension: Φ40.8 × 135.5mm
- Chemistry: LiFePO4 (Lithium Iron Phosphate)
- Features: High capacity, high power output, long cycle life, excellent safety performance
Product Specification
| Parameter | Specification |
|---|---|
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| 0.33C Capacity | ≥20000mAh (3650-2500mV, 0.33C Discharge) |
| 1C Capacity | ≥19500mAh (3650-2500mV, 1C Discharge) |
| AC Internal Resistance | ≤1.9mΩ (AC 1kHz, 25℃, 30% SOC) |
| DC Internal Resistance | ≤6mΩ (2C Discharge 30s, 25℃, 30% SOC) |
| End-of-Charge Voltage | 3650mV |
| End-of-Charge Current | 1000mA (0.05C) |
| End-of-Discharge Voltage | T＞0℃: 2500mV T≤0℃: 1800mV |
| Nominal Voltage | 3.22V (0.33C) 3.20V (0.5C) 3.13V (1C) |
| Standard Charging Current | 10000mA (0.5C) |
| Fast Charging Current | 20000mA (Max 80% SOC) |
| Standard Discharging Current | 10000mA (0.5C) |
| Max. Discharging Current | 60000mA (3C Pulse, 30s) |
| Charging Temperature Range | 0℃ ~ 55℃ |
| Discharging Temperature Range | -20℃ ~ 60℃ |
| Storage Humidity | ≤70% RH |
Product Advantages
- High Energy Capacity
With a 20Ah capacity, IFR40135 provides high energy density and is suitable for large-capacity battery pack designs requiring longer operating time. - Excellent Safety Performance
LiFePO4 chemistry delivers outstanding thermal stability, high safety, and reliable performance under demanding operating conditions. - High Power Output Capability
Supports up to 3C pulse discharge current, providing strong power output for applications with high current requirements. - Low Internal Resistance
Low AC and DC internal resistance improves energy efficiency, reduces heat generation, and enhances overall battery performance. - Long Cycle Life
Designed for long service life with excellent charge and discharge durability, reducing maintenance costs for battery systems. - Stable Voltage Performance
The flat discharge curve of LiFePO4 technology ensures stable voltage output throughout the battery discharge process. - Flexible Battery Pack Integration
The large cylindrical format provides excellent mechanical strength and supports custom battery pack assembly for various applications.
Product Applications
- Energy Storage Systems (ESS)
Suitable for residential, commercial, and industrial energy storage systems requiring safe and reliable high-capacity battery cells. - Solar Energy Storage
Ideal for solar power storage systems, off-grid solutions, and renewable energy applications. - Electric Vehicles
Provides high-capacity and high-power battery solutions for electric vehicles, low-speed vehicles, and mobility equipment. - Electric Boats & Marine Systems
Suitable for marine power systems requiring high safety, long cycle life, and stable performance. - AGV & Robotics Equipment
Provides reliable power for automated guided vehicles, robots, and industrial automation equipment. - Industrial Battery Packs
Used for custom battery pack solutions in backup power systems, communication equipment, and professional energy applications.
Technical Documents
Download the technical datasheet for this battery cell to review detailed specifications, electrical characteristics, dimensions, and performance parameters.
📄 IFR40135-20000 LiFePO4 Datasheet
Product Certifications
- Product Certifications:
UL1642, UL1973, IEC62133, IEC62619, CB, UN38.3, MSDS - Compliance Certifications:
CE, RoHS, REACH, PSE, CCC, BIS - Manufacturing Certifications:
ISO9001, IATF16949, ISO14001, ISO45001
Related Cylindrical LiFePO₄ Battery Cells
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